CN204637084U - Depression drainage device - Google Patents
Depression drainage device Download PDFInfo
- Publication number
- CN204637084U CN204637084U CN201520262647.1U CN201520262647U CN204637084U CN 204637084 U CN204637084 U CN 204637084U CN 201520262647 U CN201520262647 U CN 201520262647U CN 204637084 U CN204637084 U CN 204637084U
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- CN
- China
- Prior art keywords
- piston
- union joint
- liquid storage
- storage cylinder
- support bar
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The depression drainage device that this utility model overcomes prior art is providing the deficiency in continual and steady negative pressure.Depression drainage device, comprise the liquid storage cylinder for storage of liquids, piston and the piston rod with piston handle, described piston and piston rod removably connect, the plunger shaft for piston movement is provided with in described liquid storage cylinder, the front end of described liquid storage cylinder is provided with the union joint for being connected with negative-pressure drainage tube, also comprise support bar piston rod being played to position-limiting action, liquid storage cylinder is also provided with vacuum table, the tail end of liquid storage cylinder is provided with back-up block support bar being played to fixation, described back-up block is provided with the first blind hole matched with support bar end shape, described piston handle is provided with the second blind hole matched with the end shape of support bar, and the second blind hole is positioned at directly over the first blind hole.It is simple that this utility model has making, practical feature.
Description
Technical field
This utility model belongs to negative pressure drainage device field, is specifically related to a kind of adjustable depression drainage device.
Background technology
Depression drainage device is very common and be a vital medical apparatus and instruments in surgical operation, and depression drainage device has two kinds of effects usually, outside the liquid lead body that wound surface oozes out by the first; It two is reduced by wound surface lacuna by negative pressure, and be conducive to wound organization healing, this will have certain pressure and pressure durations by negate pressing element.Current depression drainage device is made up of pin cap, empty cylinder, piston, piston axle, piston handle usually, and empty cylinder end is provided with nipple.Be connected with drainage tube by nipple during use, pull piston boit makes piston move to the direction away from nipple to make empty cylinder and piston form negative pressure cavity, but in order to make the negative regulation in negative pressure cavity, usually pin cap one end is supported the piston handle other end and supports handle on empty cylinder.But due to the surface of piston handle and the surface of handle all more smooth, when pin cap supports piston handle, frequent generation landing phenomenon, cause piston to move making the liquid return in negative pressure cavity, particularly in the process of drawing blood to patient, because the negative pressure instability in negative pressure cavity can make the backflow of blood blood return tube in negative pressure cavity and produce recoil, patient feels very pain.
As can be seen here, there is the defect that can not provide continual and steady negative pressure in current existing depression drainage device.
Utility model content
The technical problems to be solved in the utility model exists for the depression drainage device of prior art to provide the defect of continual and steady negative pressure.
In order to solve the problems of the technologies described above, this utility model provides following technical scheme:
Depression drainage device, comprise liquid storage cylinder, piston and the piston rod with piston handle, described piston and piston rod removably connect, the plunger shaft for piston movement is provided with in described liquid storage cylinder, the front end of described liquid storage cylinder is provided with the union joint for being connected with negative-pressure drainage tube, it is characterized in that: also comprise support bar piston rod being played to position-limiting action, liquid storage cylinder is also provided with vacuum table, the tail end of liquid storage cylinder is provided with back-up block support bar being played to fixation, described back-up block be provided with match with support bar end shape the first blind hole, described piston handle is provided with the second blind hole matched with the end shape of support bar, and the second blind hole is positioned at directly over the first blind hole.
Adopt the depression drainage device of technical solutions of the utility model, piston is mobile in liquid storage cylinder forms negative pressure, in the negative pressure cavity formed to liquid storage cylinder and piston by liquid drain to be extracted; Concrete pressure in vacuum table reaction and negative pressure chamber, is convenient to medical worker carrys out control piston motion according to the force value of vacuum table feedback speed when pull piston, keeps piston uniform motion can reduce the pain of patient as far as possible.Support bar is after piston pull to assigned address, and one end of support bar is against in the second blind hole, and the other end is against in the first blind hole, and support bar carries out the spacing stability guaranteeing negative pressure in liquid storage cylinder to piston rod.
Operation principle of the present utility model is: when concrete use this utility model, first piston is shifted onto the top of liquid storage cylinder, air in liquid storage cylinder is drained, then joint is connected with negative-pressure drainage tube, pull piston rod, liquid storage cylinder and piston is made to form negative pressure cavity, according to the position of the scale value determination piston on liquid storage cylinder, be drawn to after assigned address until piston, be stuck in by support bar between back-up block and piston handle is that support bar two ends are against in the first blind hole and the second blind hole respectively, make the negative regulation in negative pressure cavity, wait for that negative pressure cavity is filled up by the liquid in drainage tube.In the process of pull piston, should make piston uniform motion according to the concrete numeral on vacuum table, the force value in negative pressure cavity can directly read from vacuum table as far as possible.
The beneficial effects of the utility model are: this utility model is against in the first blind hole on back-up block and the second blind hole on piston handle respectively by the two ends of support bar that to realize piston handle spacing, two ends due to support bar are inserted in the first blind hole and the second blind hole respectively, by the first blind pore wall and the second blind pore wall, the spacing support bar that solves is carried out to support bar and easily go out the problem come off between piston handle and back-up block, the depression drainage device overcoming prior art causes the negative pressure in negative pressure cavity unstable because piston handle supports instability, there is the phenomenon of negative pressure intracavity liquid refluence recoil.The length that this utility model also can change support bar according to real needs changes the volume of negative pressure cavity in liquid storage cylinder with satisfied different needs, according to the numerical response on vacuum table, make piston uniform motion reduce the pain of patient, the scale value on liquid storage cylinder facilitates medical worker to determine the volume of liquid in liquid storage cylinder fast and accurately.
Further, the inwall of described plunger shaft is positioned at and is provided with groove near piston handle place, be provided with locating part in described groove, described piston rod is provided with the chute matched with locating part.Locating part can slide in chute, when locating part avoids piston to move in plunger shaft, to be extracted by piston when medical worker overexerts from plunger shaft, causes the liquid outflow in plunger shaft to pollute working region, and avoids the fear of patient.
Further, described locating part is spheroid, and the cross sectional shape of described support bar is regular polygon.Spheroid and chute are point cantact, for the contact of linear contact lay dough-making powder, less to the friction of piston rod; The cross sectional shape of support bar is that regular polygon facilitates medical worker to grip support bar, and for inequilateral polygon, manufacture is lower.
Further, described union joint comprises the first union joint and the second union joint, described first union joint and the second union joint are male-pipe, the external diameter of the first union joint is less than the external diameter of the second union joint, and the axial line conllinear of the axial line of the first union joint and the second union joint, the two ends of described second union joint connect the first union joint and liquid storage cylinder respectively.First union joint is used for the drainage tube less with caliber and is connected, and the second union joint is used for the drainage tube larger with caliber and is connected, and this depression drainage device can be connected with the drainage tube of multiple different tube diameters, add the scope of application of this depression drainage device.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, technical solutions of the utility model are further illustrated:
Fig. 1 be this utility model depression drainage device partly cut open structural representation.
Reference numeral in accompanying drawing: liquid storage cylinder 1, piston 2, piston rod 3, piston handle 4, support bar 5, first blind hole 6, back-up block 7, vacuum table 8, first union joint 9, second union joint 10, second blind hole 11, spheroid 12, chute 13, groove 14, plunger shaft 15.
Detailed description of the invention
As shown in Figure 1, this utility model depression drainage device, comprises liquid storage cylinder 1, piston 2, piston rod 3 and support bar 5, and support bar 5 is six prism bars.The front end of piston rod 3 is embedded in piston 2, and the tail end of piston rod 3 is provided with piston handle 4.The plunger shaft 15 for piston 2 movement is provided with in liquid storage cylinder 1, the front end of liquid storage cylinder 1 is provided with the union joint for being connected with negative-pressure drainage tube, union joint comprises the first union joint 9 and the second union joint 10, first union joint 9 and the second union joint 10 are male-pipe, the external diameter of the first union joint 9 is less than the external diameter of the second union joint 10, and the axial line conllinear of the axial line of the first union joint 9 and the second union joint 10, the two ends of the second union joint 10 are connected with the first union joint 9, liquid storage cylinder 1 respectively, and the first union joint 9, second union joint 10 and liquid storage cylinder 1 one-body molded.The outer wall of liquid storage cylinder 1 is carved with containing mark value, liquid storage cylinder 1 front end is provided with vacuum table 8, the tail end of liquid storage cylinder 1 is provided with the back-up block 7 to support bar 5 fixations, back-up block 7 is provided with the first blind hole 6 matched with the end shape of support bar 5, piston handle 4 is provided with the second blind hole 11 matched with the end shape of support bar 5, first blind hole 6 is relative with the second blind hole 11, the inwall of plunger shaft 15 is positioned at and is provided with groove 14 near piston handle 4 place, in groove 14, be provided with locating part and spheroid 12.Piston rod 3 is provided with the chute 13 matched with spheroid 12.
In specific implementation process, back-up block 7 is one-body molded with liquid storage cylinder 1, and piston rod 3 is one-body molded with piston handle 4.When concrete this depression drainage device of use, first piston 2 is shifted onto the top of liquid storage cylinder 1, air in plunger shaft 15 is drained, then joint is connected with negative-pressure drainage tube, if when negative-pressure drainage tube is thinner, negative-pressure drainage tube is threaded with the first union joint 9, then piston rod 3 is pulled, liquid storage cylinder 1 and piston 2 is made to form negative pressure cavity, when piston 2 is drawn to assigned address, support bar 5 is stuck between back-up block 7 and piston handle 4, the two ends of support bar 5 lay respectively in the first blind hole 6 and the second blind hole 11, make the negative regulation in negative pressure cavity, wait for that negative pressure cavity is filled up by the liquid in drainage tube.In the process of pull piston 2, should make piston 2 uniform motion according to the numerical value on vacuum table 8, the force value in negative pressure cavity can directly read from vacuum table 8 as far as possible.
For a person skilled in the art; under the prerequisite not departing from this utility model structure; can also make some distortion and improvement, these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of this utility model enforcement.
Claims (4)
1. depression drainage device, comprise liquid storage cylinder, piston and the piston rod with piston handle, described piston and piston rod removably connect, the plunger shaft for piston movement is provided with in described liquid storage cylinder, the front end of described liquid storage cylinder is provided with the union joint for being connected with negative-pressure drainage tube, it is characterized in that: also comprise support bar piston rod being played to position-limiting action, liquid storage cylinder is also provided with vacuum table, the tail end of liquid storage cylinder is provided with back-up block support bar being played to fixation, described back-up block be provided with match with support bar end shape the first blind hole, described piston handle is provided with the second blind hole matched with the end shape of support bar, and the second blind hole is positioned at directly over the first blind hole.
2. adjustable depression drainage device as claimed in claim 1, is characterized in that: the inwall of described plunger shaft is provided with groove near piston handle place, and be provided with locating part in described groove, described piston rod is provided with the chute matched with locating part.
3. adjustable depression drainage device as claimed in claim 2, it is characterized in that: described locating part is spheroid, the cross sectional shape of described support bar is regular polygon.
4. adjustable depression drainage device as claimed in claim 1 or 2, it is characterized in that: described union joint comprises the first union joint and the second union joint, described first union joint and the second union joint are male-pipe, the external diameter of the first union joint is less than the external diameter of the second union joint, and the axial line conllinear of the axial line of the first union joint and the second union joint, the two ends of described second union joint connect the first union joint and liquid storage cylinder respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520262647.1U CN204637084U (en) | 2015-04-28 | 2015-04-28 | Depression drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520262647.1U CN204637084U (en) | 2015-04-28 | 2015-04-28 | Depression drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204637084U true CN204637084U (en) | 2015-09-16 |
Family
ID=54089867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520262647.1U Expired - Fee Related CN204637084U (en) | 2015-04-28 | 2015-04-28 | Depression drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204637084U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105287097A (en) * | 2015-10-29 | 2016-02-03 | 遂宁市中心医院 | Silicone oil extracting device for ophthalmology department |
| CN109172885A (en) * | 2018-09-29 | 2019-01-11 | 温学辉 | A kind of simple adjustable negative pressure therapeutic device |
| CN109833530A (en) * | 2019-03-08 | 2019-06-04 | 郑州大学第一附属医院 | Medical manual vomica negative-pressure ward drainage device |
| CN111481213A (en) * | 2020-04-24 | 2020-08-04 | 亓永杰 | Arterial blood drawing and collecting device |
-
2015
- 2015-04-28 CN CN201520262647.1U patent/CN204637084U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105287097A (en) * | 2015-10-29 | 2016-02-03 | 遂宁市中心医院 | Silicone oil extracting device for ophthalmology department |
| CN105287097B (en) * | 2015-10-29 | 2017-09-15 | 遂宁市中心医院 | Ophthalmology silicone oil extraction apparatus |
| CN109172885A (en) * | 2018-09-29 | 2019-01-11 | 温学辉 | A kind of simple adjustable negative pressure therapeutic device |
| CN109833530A (en) * | 2019-03-08 | 2019-06-04 | 郑州大学第一附属医院 | Medical manual vomica negative-pressure ward drainage device |
| CN111481213A (en) * | 2020-04-24 | 2020-08-04 | 亓永杰 | Arterial blood drawing and collecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160428 |